diff mbox series

[mptcp-next,v14,07/14] selftests: mptcp: add token for dump_addr

Message ID e0efd25748fd45d27c126b6c03828ec65891ac57.1708422758.git.tanggeliang@kylinos.cn (mailing list archive)
State Accepted, archived
Commit 6353432774ce3a0f316a79c24e97e3340347a3f0
Delegated to: Matthieu Baerts
Headers show
Series dump for userspace pm | expand

Checks

Context Check Description
matttbe/checkpatch success total: 0 errors, 0 warnings, 0 checks, 31 lines checked
matttbe/build success Build and static analysis OK
matttbe/KVM_Validation__normal success Success! ✅

Commit Message

Geliang Tang Feb. 20, 2024, 9:58 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

The command dump_addr() of pm_nl_ctl can be used like this in in-kernel PM:

        pm_nl_ctl dump

This patch adds token argument for it to support userspace PM:

        pm_nl_ctl dump token $token

If 'token $token' is passed to dump_addr(), copy it into the kernel
netlink.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
index e97856323ec3..8d7d1b4ed28e 100644
--- a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
+++ b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
@@ -1127,8 +1127,16 @@  int dump_addrs(int fd, int pm_family, int argc, char *argv[])
 		  1024];
 	pid_t pid = getpid();
 	struct nlmsghdr *nh;
+	u_int32_t token = 0;
+	struct rtattr *rta;
 	int off = 0;
 
+	if (argc != 2 && argc != 4)
+		syntax(argv);
+
+	if (argc == 4 && !strcmp(argv[2], "token"))
+		token = strtoul(argv[3], NULL, 10);
+
 	memset(data, 0, sizeof(data));
 	nh = (void *)data;
 	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_GET_ADDR,
@@ -1138,6 +1146,15 @@  int dump_addrs(int fd, int pm_family, int argc, char *argv[])
 	nh->nlmsg_pid = pid;
 	nh->nlmsg_len = off;
 
+	/* token */
+	if (token) {
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &token, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+	}
+
 	print_addrs(nh, pm_family, do_nl_req(fd, nh, off, sizeof(data)));
 	return 0;
 }